BankUnited (BKU) COO exercises PSUs and RSUs, holds 100,000 shares

Rhea-AI Filing Summary

BankUnited, Inc. Chief Operating Officer Thomas M. Cornish reported a combination of equity award exercises and a share disposition. He exercised 55,132 performance share units and 28,604 restricted share units into an equal number of BankUnited common shares at a conversion price of $0.00 per share.

On the same date, 83,736 common shares were disposed of to the issuer at $44.76 per share, leaving Cornish with 100,000 common shares held directly. Following these transactions, no performance share units or restricted share units from the reported grants remain outstanding.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cornish Thomas M.

(Last) (First) (Middle)

C/O BANKUNITED, INC.

14817 OAK LANE

(Street)

MIAMI LAKES FL 33016

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
BankUnited, Inc. [ BKU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.01 per share	03/09/2026		M		55,132	A	$0(1)	155,132	D
Common Stock, par value $0.01 per share	03/09/2026		M		28,604	A	$0(2)	183,736	D
Common Stock, par value $0.01 per share	03/09/2026		D		83,736	D	$44.76	100,000(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Share Unit	(1)	03/09/2026		M			55,132	(4)	(4)	Common Stock, par value $0.01 per share	55,132	$0	0	D
Restricted Share Unit	(2)	03/09/2026		M			28,604	(5)	(5)	Common Stock, par value $0.01 per share	28,604	$0	21,104	D

Explanation of Responses:

1. Each performance share unit represents the right to receive, at settlement, one share of common stock or cash in an amount equal to the fair market value of one share of common stock.

2. Each restricted share unit represents the right to receive, at settlement, one share of common stock or cash in an amount equal to the fair market value of one share of common stock.

3. Shares held in a joint account with the reporting person's spouse.

4. 55,132 performance share units vested on December 31, 2025 and are fully vested.

5. 14,090 restricted share units vested on December 31, 2025 were granted under the BankUnited, Inc. 2014 Omnibus Equity Incentive Plan. The units granted under the BankUnited, Inc. 2023 Omnibus Equity Incentive Plan include 14,514 units that vested on December 31, 2025; 14,514 units that will vest on December 31, 2026; and 6,590 units that will vest on December 31, 2027.

	/s/ Jacqueline Bravo, as Attorney-in-Fact	03/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
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FAQ

What insider transaction did BankUnited (BKU) report for COO Thomas M. Cornish?

Thomas M. Cornish exercised equity awards and returned shares to the company. He converted 55,132 performance share units and 28,604 restricted share units into common stock, then disposed of 83,736 common shares to BankUnited, ending with 100,000 common shares held directly.

How many BankUnited (BKU) shares did the COO acquire through award exercises?

The COO acquired 83,736 BankUnited common shares via award exercises. This came from exercising 55,132 performance share units and 28,604 restricted share units, each converting one-for-one into common stock at a stated conversion price of $0.00 per share.

What was the price for the BankUnited (BKU) share disposition by the COO?

83,736 BankUnited common shares were disposed of to the issuer at $44.76 per share. This disposition, coded as a transfer to the company, followed the exercise of performance and restricted share units into the same number of common shares.

How many BankUnited (BKU) shares does the COO hold after these transactions?

After the reported transactions, the COO holds 100,000 BankUnited common shares directly. This post-transaction holding reflects the net result after exercising 83,736 shares from awards and disposing of 83,736 shares back to the issuer.

What happened to the performance and restricted share units in the BankUnited (BKU) Form 4?

The reported performance and restricted share units were fully exercised into common stock. 55,132 performance share units and 28,604 restricted share units converted into an equal number of BankUnited common shares, leaving no remaining units from these grants outstanding in this filing.

Were the BankUnited (BKU) COO’s transactions open-market buys or sales?

The filing shows derivative exercises and a disposition to the issuer, not open-market trades. All common shares reported were acquired through equity award conversions and then partially disposed of back to BankUnited at $44.76 per share.